Senate Intelligence Chairman Dianne Feinstein, D-Calif., said a “very comprehensive no-fly list” would be “the greatest protection our country has.” In an interview, she said the definition of who can be included should be expanded to include anyone about whom there is “a reasonable suspicion.”

White House national security adviser James Jones says Americans will feel “a certain shock” when they read an account being released Thursday of the missed clues that could have prevented the alleged Christmas Day bomber from ever boarding the plane.

President Obama “is legitimately and correctly alarmed that things that were available, bits of information that were available, patterns of behavior that were available, were not acted on,” Jones said in an interview Wednesday with USA TODAY.

“That’s two strikes,” Obama’s top White House aide on defense and foreign policy issues said, referring to the foiled bombing of the Detroit-bound airliner and the shooting rampage at Fort Hood, Texas, in November. In that case, too, officials failed to act when red flags were raised about an Army psychiatrist, Maj. Nidal Hasan. He has been charged with killing 13 people.